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Find the 69th term of the following arithmetic sequence. 2, 7, 12, 17, ...
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5 votes
Find the 69th term of the following arithmetic sequence.
2, 7, 12, 17, ...

User Oleg Popov
by
7.8k points

1 Answer

1 vote

Explanation:

a=2

d=12-7=5


sn = (n(2a + (n - 1)d))/(2) \\ s69 = (69(2(2) + (69 - 1) * 5))/(2) \\ s69 = 11868

HOPE THIS HELPS!!

User Jdickel
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